Hastelloy C276 Forged Flanges

Gnee Steel (Tianjin) Co., Ltd. is one of the most professional manufacturers and suppliers of hastelloy c276 forged flanges in China. With abundant experience, we warmly welcome you to wholesale customized hastelloy c276 forged flanges from our factory. For price consultation, contact us.

Hastelloy C276 forged flanges exhibit exceptional resistance to pitting and crevice corrosion (PREN > 68) in extremely corrosive media, such as strong reducing acids (e.g., hydrochloric and sulfuric acids) and chloride-containing moist environments. The high-temperature forging process eliminates casting defects, delivering a tensile strength exceeding 690 MPa and a yield strength exceeding 283 MPa. Capable of withstanding high-pressure surges (up to Class 2500/PN400) and severe thermal cycling (-196°C to 1040°C), these flanges serve as a critical safety barrier for piping connections in flue gas desulfurization (FGD), hydrometallurgy, and fine chemical processing.

GNEE offers fully customized Hastelloy C276 forged flanges compliant with ASME B16.5, ASTM B564, and EN 1092-1 standards (including Weld Neck [WN], Slip-On [SO], Blind [BL], and Socket Weld [SW] types):
Specifications & Tolerances: Sizes ranging from 1/2" to 48" (DN15–DN1200) and pressure ratings from Class 150 to 2500; sealing surface roughness is strictly controlled between Ra 3.2 and 6.3 μm (RF/RTJ).
Quality & Inspection: 100% solution annealing treatment; every unit undergoes 100% hydrostatic/pneumatic testing, spectral PMI material verification, and ultrasonic testing (UT) to ensure the absence of internal porosity and cracks.
Delivery & Service: Supplied with EN 10204 3.1 material certificates and support for third-party inspections (SGS/TÜV); packaged in reinforced wooden crates/pallets with shrink-wrapping to ensure safe and rapid global delivery.

Production Name Nickel Alloy Steel Flange
Standard ASME/ANSI B16.5, ISO, JIS, DIN, BS,GB, SH, HG,QOST,ETC.
Size 1/2''~48''(Seamless);16''~72''(Welded)
Pressure Class 150-2500
Manufacturing process Push, Press, Forge, Cast, etc.
Package Wooden cases, pallets, nylon bags or according to the customers' requirements
Delivery time 10-100 days depending on quantity
Payment terms T/T or Western Union
Shipment FOB Tianjin/Shanghai, CFR, CIF, etc
Application Petroleum/Power/Chemical/Construction/Gas/Metallurgy/Shipbuilding etc
Remarks Other materials and drawings are available.
The third party inspection: BV,SGS,LOIYD,TUV,and other party alloyed by clients.

Q1:What product information must I provide before making a purchase?
Please provide the grade, width, thickness, and surfacetreatment requirements, as well as the quantities you require.
Q2:What shipping ports are there?
We normally ship from Shanghai,Tianjin, Qingdao, and Ningbo ports.
Q3:What are your payment terms?
30% T/T in advance and 70% balance before shipment or based onBL copy or LC at sight.

Q1:What about product pricing information?

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